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• <br /> QUALITY ASSURANCE <br /> QUALITY CONTROL PL MN <br /> The Subsurface Investigation (SI) Qualitv Assurance/Quality Control (QA/QC) program is <br /> intended to facilitate the acquisition of accurate and reliable data. Environmental data gathered <br /> during the SI will be collected and analyzed following procedures prescribed in the Quality <br /> Control Program. A Quality Assurance Program has been established to assure that the Quality <br /> Control Program is effective. Both programs are necessary to provide accurate data and <br /> documentation for investisations and laboratory analyses. The following field and laboratory <br /> procedures will be implemented to ensure that QA/QC objectives are met. <br /> . <br /> 1.0 RECORDING OF FIELD DATA <br /> All information pertinent to the field investigation will be kept in a field Iola book. Information <br /> to be documented includes at least the following: <br /> ✓ Sample Numbers <br /> ✓ Locations of Sample Collection <br /> ✓ Soil Boring or Well Numbers. as applicabie <br /> ✓ Depths at which Samples were Obtained <br /> ✓ Names of Collectors <br /> ✓ Dates and Times of Collection <br /> ✓ Purpose of Sample <br /> ✓ Sample Distribution (e.g., laboratory, archive, etc.) <br /> ✓ Field Observations <br /> ✓ Field Measurements (e-g., PID readings, pH, conductivity, well log, etc.) <br /> ✓ Other Data Records (e.la., development log, soil sampling report. well log, etc.) <br /> w:\admin\she11s\qaqc-02.doc <br /> 1 <br />